Restoring upper limb function is rated among the highest priorities for individuals with tetraplegia. Re-establishing active grasp and pinch strength to the hand can be accomplished by tendon transfer procedures in which the tendon of a strong proximal muscle is surgically re-attached to the tendon of a paralyzed muscle. A common procedure to restore lateral (key) pinch is to transfer the distal tendon of one of the three elbow flexor muscles, the brachioradialis (Br) to the tendon of the paralyzed thumb flexor, the flexor pollicis longus (FPL). Recovery of functional pinch depends on how well the patient learns to activate the Br to flex the thumb through its new distal attachment, and also to control flexion at the elbow through its proximal attachment. The investigators' previous work shows that Br to FPL recipients do not activate the transferred Br fully and may not reach optimal functional status on their own or with traditional therapies. The investigators propose that participation in a postoperative task-based training program will drive cortical changes that impact functional (pinch) ability.